Home / 39,030.42-58,493.19-20,271.42

Finding the Fourth Proportional to 39,030.42, 58,493.19 and 20,271.42

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Solution

The fourth proportional to 39,030.42, 58,493.19 and 20,271.42 is: 30,379.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,030.42 : 58,493.19 = 20,271.42 : x
  2. Step 2: Convert to fraction form
    39,030.42/58,493.19 = 20,271.42/x
  3. Step 3: Cross multiply
    39,030.42x = 58,493.19 × 20,271.42
  4. Step 4: Simplify right side
    39,030.42x = 1,185,740,021.63
  5. Step 5: Solve for x
    x = 1,185,740,021.63/39,030.42
  6. Step 6: Final answer
    x = 30,379.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.